LCA of waste-to-feed diets for laying hens

Feeding animals with food waste is an age-old practice that could have potential environmental benefits. With improved efficiency of animal feed production, and a large range of potential food waste possibilities, however, understanding these benefits requires further work.

This study is a life cycle assessment (LCA) of US laying hens‚' nutrition with incorporated feed derived from processed produce or bakery food waste. Its goal is to identify to which degree the replacement of conventional feed ingredients in hens‚' diet with alternative ones derived from food waste provides environmental benefits.